This PVA (post plasticized neutral ph polyvinyl acetate) size, for linen and canvas, seals the porous surface of fabric support.
 
Conservation scientists recommend painters size with PVA instead of rabbit skin glue for better stability.
 
Diluted with distilled water, PVA size is a contemporary size for fabric support. Conservation scientists recommend painters use neutral pH PVA size on linen and canvas instead of rabbit skin glue. PVA provides a good size layer that seals the fabric but does not re-absorb atmospheric moisture, swells and shrinks like rabbit skin glue does. There are hundreds of different formulae of PVA. We acknowledge and appreciate the research of the Canadian Conservation Institute that helps painters and conservators identify the best PVA to use. Gamblin PVA Size is made from PVA that has a neutral pH and does not yellow. It also retains its flexibility and does not emit harmful volatiles.